-LRB- CNN -RRB- -- British police are investigating the death of a man who was found unconscious at a soccer match on Saturday .

A 30-year-old , who has not yet been named , died in hospital in the early hours of Sunday morning following Stoke City 's Premier League match at home to Blackburn Rovers .

He was treated at the Britannia Stadium for a head injury and cardiac arrest before being taken to the University Hospital of North Staffordshire , Stoke 's Web site reported .

`` A 30-year-old man was pronounced dead at 1.55 a.m. this morning , '' Staffordshire Police said in a statement on Sunday .

`` The circumstances are being fully investigated and a 25-year-old man remains in custody and is helping police with their inquiries . ''

Stoke 's Web site reported that the dead man was one of 1,300 Blackburn supporters to attend the match , which City won 3-0 .

He was found on the concourse of the stadium 's SEAT stand at about 4 p.m. during the halftime break .

`` This is the tragic loss of a young man . Our thoughts and deepest sympathies go to his family , '' Stoke 's chief executive Tony Scholes said .

Blackburn also released a statement of condolence to the man 's family .

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British police investigating death of man who found unconscious at a soccer match

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A 30-year-old man died in hospital in the early hours of Sunday morning

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He was found collapsed in a stand at halftime in match between Stoke and Blackburn

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Stoke report that he was treated at the scene for a head injury and cardiac arrest